3552666 has 32 divisors (see below), whose sum is σ = 7865088. Its totient is φ = 1062720.

The previous prime is 3552641. The next prime is 3552667. The reversal of 3552666 is 6662553.

It is not an unprimeable number, because it can be changed into a prime (3552667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2271 + ... + 3501.

It is an arithmetic number, because the mean of its divisors is an integer number (245784).

Almost surely, 2^3552666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3552666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3932544).

3552666 is an abundant number, since it is smaller than the sum of its proper divisors (4312422).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3552666 is a wasteful number, since it uses less digits than its factorization.

3552666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286.

The product of its digits is 32400, while the sum is 33.

The square root of 3552666 is about 1884.8517183057. The cubic root of 3552666 is about 152.5872080257.

It can be divided in two parts, 3552 and 666, that multiplied together give a palindrome (2365632).

The spelling of 3552666 in words is "three million, five hundred fifty-two thousand, six hundred sixty-six".